Input Select Toggle: Line Input, Aux Input, Instrument
Instrument Input: ¼” Tip/Sleeve
In order to accommodate a wide range of instruments from synths to passive basses, the instrument input amp provides an additional 12.75dB of gain, allowing low level instruments to still ‘drive’ the circuitry. This puts the ’DRY’ signal at a higher gain vs ‘WET’ than when using the balanced line inputs, some balancing of MIX and OUTPUT may be necessary to achieve the desired mix.
High Frequency EQ Switch
Fixed +2 dB high shelf boost at 12KHz.
Low Frequency EQ Switch
Fixed +2 dB low shelf boost at 100Hz.
High Pass Filter Switch
Fixed 2 pole high pass filter with a resonant peak at 50Hz.
INPUT Control
Sets the input gain, and determines how hard the channel is driven. On the stepped version, the range of this control 17.5dB to +21.5dB, unity is ‘3’.
MIX Control
Controls the balance of processed to unprocessed signal.
OUTPUT Control
Sets the final output level, post MIX control. On the stepped version, the range of this control 14dB to +8.4dB, unity is ‘7’. On the stepped version, to maintain the full 12 steps of resolution available with the switch, the final position is ‘11’ (actually between the ‘T’ and ‘P’ on the label OUTPUT), or pointing straight down (6 o’clock).
DUAL Switch
Adds a second discrete stage in series to the signal path spreading the load amongst both stages, creating a more complex harmonic character.
2ND Switch
Shifts the response of the circuitry to to have stronger second harmonic content.
EMPHASIS Switch
Sets the curve of the harmonic content, shifting the focus to the middle and upper ranges, and allowing fundamental frequencies to remain unclipped.
CH. 1/CH. 2 Switches
Engages each respective channel, relay based.
Rear Panel
DC Power: 5 pin XLR +12VDC @1.5 amps
Channel 1
IN L Line Input XLR pin 2 hot
OUT L Line Output XLR pin 2 hot
AUX A Auxiliary Output XLR pin 2 hot
AUX B Auxiliary Input XLR pin 2 hot
Channel 2
IN L Line Input XLR pin 2 hot
OUT L Line Output XLR pin 2 hot
AUX C Auxiliary Output XLR pin 2 hot
AUX D Auxiliary Input XLR pin 2 hot (engaged with INPUT toggle in the middle position)